Ceiling vent



April 22, 1930. J. JENNER 755784 CEILING VENT Filed April 13', 1.927

JAMES JENA/Efe,

`25 direction, arranged according to this .inven- Patented ApluZZ, 1930I .UNHTED STATES JAMES .T EN N ER, OF LOS ANGELES, CALEFORNIA, lASSIGNOR OF` ONE-HALF T `KARL SCHUMACHER, OFLOS ANGELES, lCALI,IEORII'IACEILING vniv'r A Appia-aaronv mea April 1s,A

This invention relates todevices usedin ceilings and walls forcontrolling the air cir.- eulation in a room. p

One of the objects of this invention is, to

provide a vent thatmay be imbeddedin the structure of a building, asinthe plaster of walls and ceilings, operativeby a mere pulling of amember protruding.. t'romthe vent. Y Another object is toi facilitate"an opera.-

tion Vof the vent, as the closing 'or 'opening f movements, by oneaction. y 'n Y Another object is to provide a vent that may be closedorropenfed by a chain, or Vother similar suitable flexible` or for thatmatter any other protruding memberfrom the vent. Other objects willappear from the follow-v ing description and appended 'claims as well asfrom Ythe accompanying drawing, i kin f F ig. lis a top plan view of avent with a Vdisc rotatably mounted on the vent and with a `ratchetmechanism Vby .which the disc can be moved to close 0r open passagesthrough the vent by a rotation ofthe disc in the same tion. Y

Fig.`2 is a section on line 2-2 ofFig. 1 with the vent plate imbeddedbelow the plas-v terv of a building'structure. Y

Fig. 3 isa similar'section with the Vent plate disposed on the surfaceofthe plaster 1 of a building.

As illustratedin the drawing, the vent plate 4 is'provided with passagesor aper-` tures 5. A disc Sis turnably mounted to rotate around acentral pin 7 onthe vent plate 4.k The disc is provided with openings orapertures 8 to correspond with the openings in the vent'plate. A ratchetring 9 is provided with notches 10 of double the number of'the'groups ofapertures in thevk disc and vent plate. An operating bar 11 is shiftablymounted in the blocks V12 and 13, operat-ive by a chain 14, the chainextending through the opening 15 in the vent plate out of the front sideof the vent plate. Aratchet pawl 16 is pivotallymounted on the'operatingbar at 17, controlled by the` spring 18 disposed I. between the ratchetpawl and the operating bar to force the pawl into the notches 10. A

1927. kvsnaai N'ajisaaes.;

' T2: `Fic-E spring 19 serves to retain the disc in certain'positionstoV which the disc has been advanced Y 'by the movements of theratchet pawl 16 and operating bar 1'1. The ratchet pawl 16 andoperatingbar 11 are returned to inoperative positionl by thel spring`20.

This whole structure may be imbedded in av wall or a ceiling below theplaster so lthatthe vent `plate 4 becomes recessedor setback in relationto the plaster 21 as illustrated in Fig. 2. y

On the other hand,the vent plate 4 may be made of ornamental design andthen placed over the surface of the plaster in a position shown'in Fig.3, so that the vent plateis over the surface of a building'structure. YWhenavent of this type is disposed in a ceiling, the ychain 14 may bepulled to close or open' the vent. fr lgulling the chain and therebytheoperatlbar 11 with the pawl 16 brings the pawl into kengagement with oneof thenotchesl() i ofthe ring 9 on the disc 6. By a further pulling thedisc is rotated around the central pin V 7 on the vent plate 4. Since adouble number of the notches 10 are provided'corresponding to the groupsof apertures in the disc 6 and vent plate 4, the disc is only rotated inone operation half the distance ,between the groups ot openings, .whichmeans thatthe disc is moved or turned in vone operation to bring theopenings 8 of the disc over the closed space between the openings 5 inthe vent, that is over the solidmaterial of the vent plate, yso as toshut-olf the passages through this vent. Y

By a second operation on 11 with the pawl 16'to come into engagementwith another or" the notches 10, the disc is again rotated around thepin 7 and again moved half the distance between the groups of openings,so that the openings 8 in the disc come this time again to a positionovei the openings 5 of the vent plate. l

The groups of openings in the disc 6 and pulling the chain 14 again soas'to advance the operating bar` in the vent plate 4 are thereforepreferably Y larger near the periphery `and smaller towards the centeras illustrated in Fig. 1.

Having thus described my invention, I claim: f

l. A. vent of the class described comprising a vent plate, a discturnably mounted onY the vent plate, a ratchet mechanism for rotatingthe disc inrelation to the vent plate, and

a chain extending from the ratchet mechav nism through the vent plate toprotrude from the surface of the vent plate.

2. `In a vent of the class described, an apertured vent plate, a discturnably mounted on the vent plate with apertures to correspond with theapertures in the vent plate, operati ing means for rotating the disc,means for retaining the disc in advanced positions, and

means for returning the operating means to inoperative position Whilethe disc remains so retained.v v

In testimony that I claim the foregoing as my invention I have signed mvname.

JAMES JENNER.'

